The phrase "iron fence" refers to a sturdy barrier made of iron that is used to enclose and protect a specific area, like a garden or property, from unwanted entry or trespassing. Full definition
I'm mad for plaid so your beautiful throws and scarves are calling my name along with your wonderful wrought iron fence fragments! (postcardsfromtheridge.com)
Going out the back door, there is a brick patio perfect for entertainment and relaxation, a styled wrought iron fence and lush garden beds. (rhr.com)
I love that unusual iron fencing in the top photo adorned with fabric jackets or aprons. (theinspiredroom.net)